Metal window frame and sash.



H. E. CAMPBELL.

Patented Jim. 9, 191?.

PATENT 'HRRY E. CAMPBELL, 0F NEW YORK, N. Y.

METAL WNDOW FRAME AND SASH.

Application filed .l'uly 1, 1916.

llc it-elgnown that l, Hanny" li. Cammina@ a citizen of the United States, residing at New Yorl-, in the county New York and State oi New York, have invented a certain new and useful Improvement in Metal Tin- `dow, Frames and Sashes, of which the following is a specification.

'l'hc invention relates to window-frames and sashes oi' metal, and consists in the construction of the lower rail of the sash and of the sill, whereby by reason of the closing ofthe sash, two rather-tight joints are iformc'd between sash and sill. The construction is such that the parts in coperating; to iorni one of the joints also cause the sash to be drawn inward into close Contact with said sill, thereby Vproducing the other joint.

ln the accompanying drawings-l `igure 1 is a. front elevation of the lower corner of a metal. wi1ulo\\'-frame and sash embodying my invention. Fig. 2 is a section on the line af, .fr of llig. l.

Similar numbers and letters of reference indicate like parts. l

l is the sill.

2 is a hollow jamb having in its inner wall a vertical opening to receive a guideplate 3, which projects laterally from one vertical member #i ot the sash frame. A. similar jamb, having a vertical opening', receives a similiar plate on the other vertical member (not shown) oi' said sash frame.

The bottom sashrail and the sill, to which my present invention isapplied, are constructed as' follows: The inner portion of the sill is Apreferably horizontal, as shown at A, and on its outer edge has a vertical substantially wedge-shaped fiange B. rJlhe outer portion C o1c the sill is downwardlyv and outwardly inclined `and lies below the level of part A. Between the portions C and I A 1s an inwardly curved portion D. The bottom sash rail con'iprises an outer bar E of sheet metal, which extends over the lower portion ot' the pane F. The lowerpart G of said bar extends downwardly for such a distance as that when thesash is in closed position, as shown in Fig. 2, said lower part lies in front of the sill flange B. The bar E Vis bent twice, and its horizontal portion Hextends below the pane G. Saidsash. rail also comprises an inner bar I of` sheet metal, which is united to the depending' part Gr of the outer bar by any suitable means, such as Specification of Letters Patent.

Patented Jan. 9, ldt?.

Serial No. 106,996.

electric welding. Said bar has at its upper edge an inwardly turned flange J, and at its lower edge a flange which is iii-st. bent at right angles inwardly, and then downwardly and inwardly, as shown at L. The inclinetion of the flange at L corresponds to the inclination of the inner side of the sill dange- B. The upper part of bar I bears against the lower portion of the pane. The flange ,l provides a ledge, to which the hands of the operator may beappliedI in raising or lowering,F the sas When the sash is in lowered position, the inclined iiange L meets and runs over the inner inclined surface of the sill flange B until the lower edge of Sad llange L is seated upon the ,sill By reason. of the coaction of these parts, as the sash moves downwardly,n the inner face of the downward extension G of bar Eis drawn into close Contact with the sill at the base of the flange B. In this way, two tight joints are formed between the sill and the bottom sash rail-namely, that between the inclinedlange L and iiange B, and between the den pending;1 portion (l of bar E Iand tht. base of being between the inner face of portion G\ and the angle at M between the outer` inclined side of flange L and the curved portion .D of thesill. The resiliency of the metal sash frame' is suflicient to permit of the slight lateral movement of the lower sash rail that is required. By this means l produce at the bottom rail of the sash two water and dust-proof joints. Y

l claim: E

l. A sash of sheet metal, having a bottom rail comprising an' out-er bar and an inner bar united together and receiving the lower edge of the pane between them, the said outer Vbar being;n` bent to form a 'shoulder closing the space between said bars, and a sill comprising an inner horizontal portion, a Vertical wedge-shaped flange, and an outer inclined portion; the said innerbar having a downwardly and inwardly inclined flange extending over and cooperating with said sill flange, and the said outer bar, when said sash is in closed position, extending below and forming a joint with the angle of said sill at the base of the wedge-shaped flange thereon.

los

2. A sash of metal having two longitudinal plates secured on the under Side of its lower rail, the outer plate extending below the nnei` plate, a sill, and a vertical flange on said. sill entering between said plates .and having its inner side downwardly and i11- Wm'dly inclined; the said inner plate, upon the closing of said sash, coperating with the inclined inner side of seid flange to move 10 said outer plate laterally inward into con- Witnesses: y

GERTRUDE T. PORTER, MAY T. MCGARRY. 

